45204137 ÷ 725 
The aim is to understand the frequency of 725 in 45204137.

Moving on to step 1:
4 divided by 725 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 725

Advancing to step 2:
If we divide 45 by 725, we get 0 and a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Take the next digit (2) from the dividend and append it to 45, then repeat: 452 / 725

Step 3:
When dividing 452 by 725, we get 0 with a remainder of 452.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 452, we get 452.
Include the next digit (0) from the dividend after 452, then repeat: 4520 / 725

Step 4:
When dividing 4520 by 725, we get 6 with a remainder of 170.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 170 after subtracting 4350 from 4520.
Include the next digit (4) from the dividend after 170, then repeat: 1704 / 725

Advancing to step 5:
The number 725 fits into 1704 2 times, leaving a remainder of 254.
Put 2 as the next digit of the answer. 
Result so far: 62.0
If we subtract 1450 from 1704, we get 254.
Grab the next digit (1) from the dividend, add it to 254, then carry on: 2541 / 725

Step 6:
725 goes into 2541 3 times with a remainder of 366.
Write down 3 as next digit of the result. 
Result so far: 623.0
Subtract 2175 from 2541 to get 366.
Grab the next digit (3) from the dividend, add it to 366, then carry on: 3663 / 725

Advancing to step 7:
If we divide 3663 by 725, we get 5 and a remainder of 38.
Use 5 as the next digit of our solution. 
Result so far: 6235.0
If we subtract 3625 from 3663, we get 38.
Bring next digit (7) of the dividend behind the 38 and repeat the process: 387 / 725

Advancing to step 8:
When dividing 387 by 725, we get 0 with a remainder of 387.
The next digit of our result is 0. 
Result so far: 62350.0
Subtract 0 from 387 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Going ahead to step 9:
The number 725 fits into 3870 5 times, leaving a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 62350.5
Deduct 3625 from 3870 and we're left with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Going ahead to step 10:
725 can be fit into 2450 3 times, resulting in a remainder of 275.
Use 3 as the next digit of our solution. 
Result so far: 62350.53
The remainder is 275 after subtracting 2175 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 11:
If we divide 2750 by 725, we get 3 and a remainder of 575.
Use 3 as the next digit of our solution. 
Result so far: 62350.533
The remainder is 575 after subtracting 2175 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

The final outcome is 62350.533, with a leftover of 0.0575.